at one end of the spectrum is knowledge, what fully is.
at the other end is ignorance, what absolutely is not.
in between it is opinion.
maybe it's pretty difficult to get full knowledge because that will be wisdom, something that comes with age, experiences and expertise.
but at least be somewhere in between knowledge and opinion, because if you're stuck at ignorance then that will be plain sad.
and yes, all these words are really ancient, but really, how much have human change?
the world is thoroughly a strange place to be in